FLOW CONTROL SYSTEM TO REDUCE MEMORY BUFFER REQUIREMENTS AND TO ESTABLISH PRIORITY SERVICING BETWEEN NETWORKS
- 申请公布号：
- WO02088984(A1)
- 申请号：
- WO2002US13417
- 申请日期：
- 2002.04.26
- 申请公布日期：
- 2002.11.07
- 申请人：
- ENTERASYS NETWORKS, INC.
- 发明人：
- CARRAFIELLO, MICHAEL, W.;HARAMES, JOHN, C.;MCGRATH, ROGER, W.
- 分类号：
- G01R31/08;G06F15/16;H04L12/46;H04L12/56;H04L25/05;(IPC1-7):G06F15/16
- 主分类号：
- G01R31/08
- 摘要：
- The invention is a system and method to allow precise control of the transmit packet rate between two different networks (120) and to optionally introduce a priority servicing scheme across several related output ports of a switch engine (110). The invention employs flow control circuitry (101) to regulate data packet flow across a local interface (100) within a single device by asserting back-pressure. Specifically, flow control is used to prevent a switch port (102) from transmitting a data packet until a subsequent processing stage is ready to accept a packet via that port (102). The downstream node only permits transmission of packets from the switch when its buffer is available.
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